.header{
  height: 44PX;
  background-image: linear-gradient(180deg,#FF774D 0%,#E65752 100%);
  position: relative;
  padding: 0 16PX;
  text-align: center;
  line-height: 44PX;
  font-size: 21PX;
  color: #fff;
}
.back{
  position: absolute;
  left: 0;
  height: 44PX;
  width: 50PX;
  padding-left: 16PX;
  display: flex;
  align-items: center;
  img{
    width: 11PX;
  }
}
